more fence cases

git-svn-id: file:///svn/tokudb@5343 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/locking-benchmarks/pthread-locks.c

@@ -42,7 +42,7 @@ static inline void brwl_rlock_xchg (struct brwl *l) {
 }
 
 
-enum {K=1000};
+enum {K=10000};
 pthread_rwlock_t rwlocks[K];
 struct brwl blocks[K];
 pthread_mutex_t mlocks[K];